Machine for making bobbins for electric batteries



A. KIPNISS: AND M. P. NEUMANN. MACHINE FOR MAKING BOBBiN S FOR ELECTRIOBATTERIES. APPLICATION FILED JAN. 10. 1918.

1 ,321,829. Patented Nov. 18, 1919.

6 SHEETS-SHEET I.

MA 1NVENTOR$ AT DRNEY A. KIPNISS AND M. P. NEUMANN.

MACHINE FOR MAKING sossms FOR ELECTRIC BATTERIES.

AP LICATION FILED IAN.10,19I8.

Patented NW. 18, 1919.

6 SHEETS-SHEET 2.

ATTORNEYS A. KIPNISS AND M. P. NEUMANN. MACHINE FOR MAKING sossms FOR ELECTRIC BATTERIES.

AP LICATION FILED JAN. 10, I918- Patented Nov. 18, 1919.

6 SHEETSSHEET 3 %NVENT0R3 ATTORNEYS A. KIPNISS AND M. P. NEUMANN.

MACHINE FOR MAKING BOBBINS FOR ELECTRIC BATTERIES. APPLICATION FILED IAN. I0, 1918.

1 32 1,829. Patented N 0v. 18, 1919.

6 SHEETS-SHEET 4.

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z; I o I I 90 ATTORNEYS A. KIPNlSS AND M. P. NEUMANN.

MACHINE FOR MAKING BOBBINS FOR ELECTRIC BATTERIES.

AP LICATION FILED IAN.10,1918.

6 SHEETSSHEET a.

Patent-ed Nov.

INVENT R5 ATTORNEYS A. KIPNISS AND M. P. NEUMANN. MACHINE FOR MAKING BOBBINS FOR ELECTRIC BATTERIES.

AP LICATION FILED 1AN.I0,19IB.

1,321,829. Patented Nov. 18, 1919.

6 SHEETS-SHEET 6.

E Z II Iv NToRs ATTORNEYS UNITED STATES PATENT orruon.

ABRAHAM KIPNISS AND MAX PAUL NEUMANN, OF NEW YORK, N. Y., ASSIGNORS TO NATIONAL CARBON COMPANY, INC., OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

Specification of Letters Patent.

Patented Nov. 18, 1919.

Application filed January 10, 1918. Serial No. 211,172.

To all whom it may concern:

Be it known that we, ABRAHAM KIPNiss and MAX PAUL NEUMANN, citizens of the United States, residing in the borough of Queens, in the county of Queens and State of New York, have invented certain new and useful Improvements in Machines for Making Bobbins for Electric Batteries, of which the following is a specification, refer ence being had therein to the accon'ipanymg drawings, forming part thereof. 7

Our invention relates to machines for antomaticallv making the inner electrodes or bobbins of usual dry batteries. ouch an electrode or bobbin commonly includes a cylindrically shaped mass of depolarizing material which surrounds a central electrode rod of carbon which projects therefrom at one end thereof. The machine of our present invention is a further development of and improvement upon that disclosed in our copending application for patent. Serial No. 191.174, filed October 1, 1917, for machine 'lorniaking bobbins for electric batteries.

Objects of our present invention. are to simplify the construction and increase the effectiveness of the machine, and also to im prove the quality and uniformity of the bobbins produced thereby. Other obgeots and advantages of our invention will hereinafter appear.

In our above noted earlier machine the carbon electrode rod was pushed into a perforated cylinder of depolarizing material in a mold, and was pushed against a solid or imperforate base plate or bottom-fornnng backing plate, thereby requiring, as there provided, resiliently yielding means for pushing this carbon rod into place, because of the brittle and comparatively friable nature of this rod, and also introducing uu certainty as to the extent to which the carbon. electrode rod would be pushed into the cylindrical perforated charge of depolarizing material, thereby causing irregularity in the length of the completed bobbins, particularly in view of the fact that the carbon electrode rods, although all supposed to be of the same length, as a matter of fact exhibit considerable inequality in length. As a feature of our present invention, and in clear d 1f ferentiation from our above noted prior 1nvention, means are provided for inserting the carbon rod into the mold and into the depolarizing material therein one end thereof and for forcing or pushing this carbon electrode rod completely through the mold and through the charge of depolarizing material contained therein until such rod projects from the other or opposite end of the mold and of the material contained therein, and until such rod is substantially flush with the end of the charge at which such rod was introduced, thereby eifectively assuring that such electrode rod extends throughout the length of the cylindrical charge of depolarizing material, and also entirely eliminating any liability whatever of breaking this elec trode rod by reason of excessive endwise pressure thereupon. Our invention also more particularly includes various features of construction and combinations of parts and sub-combinations thereof as will appear from the following description.

e shall now describe the automatic bobbin making machine embodying our invention illustrated in the accompanying drawings and shall thereafter point out our invention in claims.

Figure l is a front elevation of an automatic bobbin making machine embodying our invention, the machine being shown with its parts in the position in which they automatically come to rest when the machine is not in operation.

Fig. 2 is a side elevation as viewed from the right in Fig. 1 and with parts omitted.

Fig. 3 is an enlarged horizontal and transverse section on a plane indicated by the line 3-3 of Fig. 1 as viewed from above, with parts omitted, and illustrating a slightly different and succeeding phase of operation in which a mold-carrying turret has reached its position of rest with the molds carried thereby in alinement with a series of plungers.

Fig. 4r. is a partial vertical section. on planes indicated by the offset line 4-4 of Fig. 3 as viewed from below.

Fig. 5 is a similar section on planes indicated by the offset line 55 of Fig. 3, and which at the left coincides with the line M.

Fig. 6 is a partial vertical section on planes indicated by the olfset'line 6-6 of Fig. 3 as viewed from the left.

Fig. 7 is a similar view on the offset line 77 as viewed from the left, and which in its lower part coincides with the line 6-6.

Fig. 8 is a partial vertical section on a plane indicated by the line S8 of Fig. 3 as viewed from below.

Fig. 9 is a view similar to Fig. 8 but with the movable parts in a different and succeeding position.

Fig. 10 is a partial transverse or horizontal section on a plane indicated by the line 1010 of Fig. 9 as viewed from above.

In the automatic electrode making or bobbin making machine embodying our invention illustrated in the accompanying drawings, the usually somewhat moist powdered depolarizing material is adapted to be contained in a main supply magazine 1 which in its lower part at one side thereof freely communicates with a smaller auxiliary magazine or feed magazine 2. A rotating stirrer shown as comprising wings or paddles 3 carried by a head a mounted upon a vertical rotating shaft 5, prevents packing of the line moist depolarizing powder in the main magazine 1, and also assists its flow therefrom into the smaller feed magazine 2, as will be readily understood. A similar smaller stirrer in the feed magazine 2 has stirring blades 6 carried by a head 7 mounted upon a vertical operating shaft 8.

The stirrer blades 6, together with gravity, cause the powdered depolarizing material to enter the open upper ends of a series, shown as sixteen in number, of vertically arranged molds 9 carried by a horizontally arranged rotating turret 10 shown as provided with an upper plate or face plate 11 which forms a bottom for the feed magazine 2 and upon which the powdered depolarizing material therein rests, and in the construction shown in the drawings, the upper open ends of a pluralit Y of an average of four of the molds 9 are in communication with the feed magazine 2, as appears most clearly in Fig. 3 of the drawings. The machine has a horizontally arranged bed plate 12 shown as provided on its upper side with a base plate 18 which closes the lower ends of and forms a bottom for the powder-receiving molds 9, as clearly appears in the drawings. By reason of gravity and the stirring blades 6, the molds 9 become evenly filled with loose depolarizing powder in the form of a cylinder 1, as appears in the drawings at the left in Figs. 1 and 5 more particularly. The turret 10 is fixed upon the upper end of a vertical operating shaft 15 shown as extending down through the bed plate 12 and as mounted in bearings carried thereby, these hearings for the turret shaft 15 including a weight-supporting thrust bearing shown as a ball hearing.

The mold'carrying turret 10 is automatically periodically rotated step by step or in termittently a distance equal to the space between the equidistantly spaced mold 9 by means now to be described. A short transverse or horizontal operating shaft 16 journaled in the frame of the machine at its inner end is connected to the turret shaft 15 to ratchet teeth corresponding to the sixteen equidistantly spaced molds 9 of the turret 10. A vertically arranged rocking lever 19 pivoted on the operating shaft 16 carries at its lower end a spring-pressed pivoted pawl 20 pressed to engaging position by a spring 20 and which engages the ratchet teeth of the ratchet wheel 18, and at its upper end the rocking lever 19 has pivoted thereto one end of an operating link 21 which extends rearwardly and is shown as provided with a slot by which it is guided on a rotating cam shaft which is journaled in the lower part of the frame of the machine and en'- tends parallel with the turret-operating shaft 16. The adjacent end of the cam shaft 22 carries a sector-shaped cam which as the cam shaft 22 rotates engages a rear cam roller 24': on the rear end, of the operating link 21 for thereby imparting rearward turret-rotating movement to the operating link 21, and which also engages another or forward cam roller 25 on the operating link 21 for moving this link fir ward thereby to retract the turret-operating pawl 20 over one of the ratchet 1 :h of the ratchet wheel 18, the proportions and ar rangement of the turret-operating cam 2:3 being such that the ratchet wheel 18 will be moved up one tooth and then have a period of rest for each rotation of the turret-operating cam shaft 22 and whereby the moldcarrying turret 10 will have a correspond ing movement with intervening periods of rest, as will be readily understood. During the operation of the machine the cam shaft 22 is continuously rotated from and at the same rate of speed as a main shaft or crankshaft 26 which is journaled transversely in the upper part of the frame of the machine parallel with the cam shaft 22 and is connected thereto by means of a pair of similar sprocket wheels 27 and a sprocket chain 28.

A plunger-carrying cross-head 29 is vertically slidable in guideways provided in the frame of the machine, and during the operation of the machine is continuously reciprocated by means of a two-part connecting rod 30 and crank 31 on the main shaft 26, the connecting rod 30 being shown as adjustable as to its length by means of a turnbuckle 32 which forms a coupling between the two parts of this connecting rod. Before proceeding further it may be as well to note that the hereinbefore described stirrer in the main magazine 1 is continuously rotated during the operation of the machine by means of a bevel 33 fixed upon the upper end of the stirrer shaft 5 and engaged bya bevel pinion 34 carried by a short transverse shaft 35 which is geared to the main shaft 26 by means of a pair of similar spur gears 36, as clearly appears in the drawings. Also it is as well to note in this connection that the hereinbefore described smaller stirrer in the feed magazine 2 is rotated alternately in opposite directions during the operation of the machine by means of a rack 37 carried by the cross-head at the front of the machine and engaging a spur gear 38 which is an idler and meshes with a spur pinion 39 fixed upon the outer end of a short rearwardly extending shaft 40 which at its rear end is geared to the stirrer shaft 8 by means of a pair of similar bevel gears 41, as is clearly shown in the drawings.

Locking means, shown as movable abutment means, are provided for areventing the continued rotation of the mold-carrying turret 10 under its own momentum after it has ceased to be actuated by the periodically acting means hereinbefore described and including the ratchet wheel 18 and its intermittently acting operating means. The mold-carrying turret 10 is shown as provided with a peripheral series of sixteen equidistantly spaced radially projecting abutment studs 42 corresponding to the sixteen equidistantly spaced molds 9 carried by this turret. At the rear of the. turret 10 a forwardly extending abutment finger 43 is normally in position to engage one of the abutment studs 42. This abutment finger 48 is carried by the lower end of a vertically arranged pivoted actuating lever 44 to the upper arm of which is connected at retractile spring 45 for moving the abutment finger 43 to its stud-engaging position. At its upper end and at the rear the finger-actuating lever 44 is shown as slightly tapered or rounded so as to provide a cam surface which is adapted to be engaged by an L- shaped actuating member 46 carried by the plunger-carrying cross-head 29 at the rear thereof, and upon the descent of the crosshead this actuating member 46 operates the lever 44 to retract the abutment finger 43 out of the path of the peripherally arojecting abutment studs 42. WVhen the a ut ment finger 43 is retracted, a laterally extending retractile spring 46 connected thereto and anchored to the frame of the machine operates to shift this lever to the right as viewed from the front of the machine and as seen in Fig. 3, so that when the plunger-carrying cross-head 29 descends and while the turret 10 is still stationary, the forward lug-engaging end of this abutment finger 43 will be shifted to the extent permitted by a certain amount of lost motion in the pivoted operating lever 44 sufficiently so that the forward end of the abutment finger 43 under the actuation of the spring 46 will rest upon the top of the abutment stud 42 which it before was in engagement with, thereby leaving the turret 10 free to be rotated when its operating mechanism hereinbefore described is brought into operation as provided for in the construction of the machine and whereupon the spring-pressed abutment finger 43 upon the next intermittent partial rotation of the mold-carrying turret 10 will be free to be pressed into its engaging position by the spring 45, as will be readily understood, thereby effectively preventing the momentum of the turret 10 and its connected parts from. carrying it too far.

The means for forming the loose cylindrical charges 14 contained in the molds 9 into firmly compacted bobbins having an electrode rod extending therethrough and proj ecting from one end thereof and including features of our present invention will now be described. The cross-head 29 rigidly carries four downwardly projectin: plungers for operating upon the cylindrical charges 14 of loose depolarizing material contained in the molds 9 at the successive periods of rest of the intermittently rotated turret 10, all of these four plungers, however, being operated at once and each performing its own operation different from that of any of the other plungers and in a different mold, the molds being moved successively into alinement with the successive plungers. In the particular machine illus trated in the drawings the four plungers, which are arranged in an arcuate series, are spaced apart twice the distance of the spacing between the molds 9, so that as the mold-carrying turret 10 rotates there will at all times in the operation of the machine be a mold 9 in an inactive or non operative position of rest between the plungers when they are actuated, as is indicated in Fig. 3, so that in this machine the plun gers operate upon the charges of depolarizing material in each alternate mold 9 without, however, thereby in any particular interfering with the final result, as will be readily understood.

The first of these plungers is a combined compressing and punching plunger coniprising a shank 47 which is fixed in the cross-head 29, and a downwardly extending compressing part 48 which is cylindrical and adapted to snugly enter any one of the molds 9 and from the center of which there projects a punching rod or tip 49. The length or extent of the downward projection of the compressing part 48 of this plunger is such that upon the descent of the pliiingen carrying cross-head 29, the loose charge 14 in the mold 9 which has been brought into a position of rest below and in alinement with this plunger will be compressed to the desired extent, and the length or extent of downward projection of the punching rod 49 is such that concurrently with this comlOO pression the charge 0f depolarizing material will have a hole punched therein by the downward movement of this punching tip d9, part way through the charge in the mold 9 but not all of the way through to the bottom-forming face plate 13 which overlies the bed plate 12, and in the lowered position of the punching tip 49 there will be a space between its lower end and the upper surface of the face plate 13. At this operation of compressing and punching the loose cylindrical charge 1a which appears at the right in Fig. i beneath this combined compressing and punching plunger will be compressed and a. hole punched therein to form the tube 50 of depolarizing material which appears at the right in Fig. 5 where this punched or partly porforated cylinder 50 in the intermittent rotation of the turret 10 is in position for the next succeeding operation after the completion of the operation of compressing and punchingjust described. This arrangement for punching a hole part way only through the charge forms a feature of our present invention, as diileremiiated from our above noted prior invention,

The second plunger to operate is a carbon-inserting plunger for inserting a carbon electrode rod into the hole in the cylinder 50, and this plunger comprises an enlarged securing shank 51 fixed in the crosshead 29 and a downwardly projecting carbon-inserting rod 52 for pushing a carbon electrode rod 53 downward into the upper end of the compressed and partly perforated cylindrical charge 50, as appears at the right in Fig. 5, this carbon electrode rod 53 having been brought into vertical position in alinement with the inserting rod and the hole in the punched charge 50 by means which will presently be described. In the particular machine illustrated in the drawings, the carbon electrode rod is not pushed or forced all of the way through the cylinder 50 by the carbon-inserting rod 52, but the proportions and extent of movement of the parts are such that this red is pushed all of the way into the mold 9 until its upper end is level or flush therewith, but by reason of the originally greater length and previous compression of the charge 50, the carbon electrode rod 53 is pushed only part way into and part way through the cylindrical charge 50, and will be held in the upper end of the hole in the upper end thereof, as appears at the left in Fig. 6 and at the right in Fig. 8 illustrating the completion of the operation indicated at the right in Fig. in one of the molds 9 whic 1 has been carried to the next succeeding position for an operation of the next succeeding plunger, but before this third operation has beeen performed. This partial insertionof the carbon rod 53 in the punched cylinder 50 forms one of the features of our present invention, differentiating it from our above noted prior invention. if an attempt were made, as heretofore and as in our above noted prior machine, to push this electrode rod 53 all of the way throu h the punched cylinder 50, the depolarizing material left at the bottom thereof together with other scraped off by the advancing end of the electrode rod would interfere with the complete insertion of the electrode rod and this carbon rod would be broken unless some special yieldable means were provided, such as was done in our above noted prior machine, and also the bobbin would be imperfect by reason of the fact that the carbon electrode rod 53, not extending so far into the deplorizing material, would not be so fully exposed to its action, and also the additional projection of the carbon rod from the cell would be objectionable and would interfere with the use of these cells, particularly as commonly assembled to form batteries.

The next or third plunger to act is a combined carbon-positioning and compressing plunger which has a shank 54L fixed in the cross-head 29, and a Working tip 55 which is cylindrical and of a size to fit snugly within any one of the cylindrical molds 9. lVhen the plunger-carrying cross-head 29 descends, the cylindrical plunger tip 55 will enter the mold 9 which has been brought to a position of rest in alinement therewith as appears at the left in Fig. 6 and at the right in Fig. 8, the mold 9 being thus brought to rest before this plunger has descended more than to a very slight extent and as is indicated by the position of the crank 31 in the upper part of Fig. 6. As the cross-head 29 descends the plunger tip 55 will first engage the outer or upper end of the carbon elec trode rod 53 which as appears in the drawings and as hereinbefore noted projects from and above the upper end of the compressed and punched or partly perforated charge 50 of depolarizing material and is substantially flush with the top of the face plate 11 of the mold-carrying turret 10, and the plunger tip 55 as it descends pushes this carbon electrode rod 53 downward into the tubular upper end of the charge 50 of depolarizing material until the lower end of the plunger tip 55 comes in contact with the upper end of the initially compressed and partly perforated cylindrical charge 50 of depolarizing material, after which the fur ther descent of the plunger tip 55 not only moves the carbon rod downward but also further and finally compresses the depolarizing material around this carbon rod 53, thereby to produce a firmly compressed tube 56 of depolarizing material around the carbon rod 53, which by reason of its greater length projects downward from nd beyond the lower end of this finally compressed tube 56, as is shown at the right in Fig. 9 and at the left in Figs. 7 and 8. It is to be noted that toward the latter part of its movement the descending carbon rod 53 acts as a perforating punch for punching out the depolarizing material which was left at the bottom of the hole formed by the punch 49. In view of the fact that the carbon electrode rod is pushed entirely through the cylinder of depolarizing material from the upper end thereof until it projects from the lower end thereof, it will be readily understood that the carbon electrode rod 53 will extend entirely through this charge 50 with itsv upper end, when in the inverted position in the machine as shown in the drawings, flush with the upper end of the finally compressed tube 56 and with its lower end projecting therefrom, thereby eliminating the possibility of irregularity in the positioning of the carbon rod within in the depolarizing material in the completed battery cell.

In order to provide for the reception of the downwardly projecting lower end of the carbon electrode rod 53, and for the further rotation of the mold-carrying turret 10 to the position at which the completed electrode bobbin is discharged or ejected from the mold 9, means are provided now to be described. The bed plate 12 of the machine is provided with an elongated slot 57 and immediately above the slot 57 in the bed plate 12 the overlying face plate 13 is provided with. a tapered slot 58, the smaller end of which, appearing at the right in Figs. 8, 9, and 10, is just of a size to permit the free passage of the lower projecting end of the electrode rod 53, and is shown as cylindrically rounded to correspond with the circumferential curve of the cylindrical electrode rod, while the other or larger end of the slot 58, which appears at the left in Figs. 8, 9 and 10, is circularly curved and is of sufficient width for the free passage of the completed electrode including the tube 56 thereof. for thereby permitting the discharge of the completed bobbins from the molds 9 in the ejecting operation performed by the fourth and last plunger, as will presently appear.

It will. be noted that in the two preceding or first and second operations the face plate 13 forms an iniperforate bottom for the molds 9., the first operation referred to being the initial compression and punching or partial perforation of the loose uncompressed and unpunched charge 14 of depolarizing material to form the initially compressed and punched charge 50, and this operation being performed by the first plunger having the shank '17, and having the compressing part 48, and punching tip 49, and the second operation referred to being the insertion of the carbon electrode rod 50 by the second plunger having the carboninserting rod 52. It is now to be noted that at the third operation just described of positioningthe carbon electrode rod 53 within the initially compressed and punched charge 50 and further finally compressing this charge 50 to form the bobbin tube 56, the face plate 13 forms a partial bottom for the molds 9 in this position, and supports the charge 50 during the positioning of the elec trode rod 53 and the final compression of this charge 50 at all points excepting in the space occupied by the smaller end of the tapered slot 58; and movable abutment means now to be described are provided for intermittently closing the smaller end of this slot beneath the charge of depolarizing material and leaving only an opening or hole at the smaller end of the slot 58 for the passage of the lower end of the electrode rod 53. A movable abutment 59 is shaped in tapered form at its upper end for closing the smaller end of the tapered slot 58, excepting to leave a hole in the end of this slot for the passage of the carbon electrode rod 53. This movable abutment 59 is carried by a laterally eX- tending lever arm 60 shown as formed in one piece or integral therewith, and pivoted to the frame of the machine at the lower side of the bed plate 12 ona pivot pin 61, as appears most clearly in Figs. 8 and 9. In its upper or elevated position the abutment 59 cotiperates with the face plate 13 to form a complete bottom for the mold 9 beneath the final compressing and carbon-positioning plunger tip 55, as appears at the right in Fig. 9 and in Fig. 10, leaving only, as above described, an opening for the downward movement of the downwardly projecting rod 53. In its lowered position appearing in the other figures of the drawings, particularly in Figs. 2 and 8, the abutment member 59 has moved downward entirely clear of or out of the tapered slot 58 so as to provide for the lateral movement of the downwardly projectin end of the electrode rod 53 along the slot 58 toward the larger end thereof as the turret 10 rotates. The abutn'ientmember 59 together with its lever 60 is adapted to be moved to its lower or non-operative position by means of gravity assisted by the downward pull of a retractile spring 62, appearing in Figs. 2 and 9, which is attached to the lever 60 and is anchored to a pin 63 projecting from a part of the frame of the machine.

The abutment member 59 is adapted to be a lifter arm 66 which is pivoted at its rear end at 67 (see Fig. to the frame of the mach ne, and, extends forward beneath and in engagement with the abutment-carrying lei 61 60. The shape or contour of the abutmerit-operating cam 64: is such, as appears in the drawings, that the abutment member 59 will be raised and will then be held or sus tained in this raised slot-closing bottom- :t'orming position appearing in Figs. 9 and 10 for a suflicient length of time during a position of rest of the mold-carrying turret 10 for the operation of the third plunger 55, as hereinbefore described, and the shape of this earn 64: is also such as to maintain the abutment member 59 in a depressed position with the slot 58 open, as appears in the drawings, particularly in Fig. 8, during the movement of the mold-carrying turret 10, so as to permit a mold 9 having an electrode rod 53 projecting downward therefrom to move away from its position in alinement with the third plunger 55, after the operation of this plunger as above described. In view of the fact, as hereinbefore noted, that the plungers are spaced apart twice the distance of the spacing of the molds 9, it will require two successive movements of the turret 10 in order to bring the mold 9 from its position in alinement with the third plunger to the position in alinement with the next or fourth plunger at the larger end of the tapered slot 58, or stated in other words, it will require two successive movements of the turret 10 to transfer a mold 9 from the smaller to the larger end of the tapered slot 58 in the bottom-forming face plate 13.

The condition of the uncompleted bobbin after the operation of the second or carboninserting plunger and before the operation of the thire plunger 55 appears at the left in Fig. 6 and at the right in Fig. 8, and after the operation of the third plunger 55 the bobbin then complete in the mold 9, as appears at the right in Fig. 9 and at the left in Figs. 7 and 8.

The fourth and last plunger to operate in the molds 9 is an ejecting plunger for dis charging the completed electrode bobbins from the molds, and this plunger comprises a securing shank 68 fixed in the plunger carrying cross-head 29, and having at its lower end an ejecting tip 69 which is correspondingly longer than and projects below the carbon-positioning and final compressing tip 55 of the third plunger, the plunger tip 69 being shown in the drawings as of the same length as the molds 9, and as being adapted to move downward from a position above a mold 9 in alinement therewith, until the lower end of the plunger tip 69 is flush with the lower end of the mold 9, as appears at the left of Fig. 9. The larger end of the tapered slot 58 in the face plate 13 is at all times left freely open, and as the plunger tip 69 moves downward from the position above. the mold 9 in alinenient therewith and con-- taining a completed electrode bobbin, as appears in the drawings, particularly at the left of Figs. 7 and 8, to the position appearing at the left of Fig. 9, the completed bobbin which appears in the mold 9 at the left of Figs. 7 and S will be ejected or pushed downward out of th mold through the larger end of the tapered slot 58, and through the elongated slot 57, and will drop freely downward where it may be received by any means provided for he purpose or may be caught in the hand of an operator, the latter being the way which has been employed in the operation of the machine shown in the d awings.

The means by which the carbon electrode rods 53 are supplied and are successively brought into alinement with the carbon-inserting plunger rod will, be described. The carbon elect-rode rods are contained in a magazine 70 in horizontal position and descend by gravity through an inclined chute 71 which the electrode rods 53 may freely enter successively one after the other at the upper end thereof from the rod-containing magazine 79. ii slotted block 72 forms continuation of the lower end of the chute 71, and a rock shaft 73 is journaled in the lower and forward part of the slotted block 72 and its inner end, appearing the left in Figs. 1, 3, 4:, and 5, has fixed thereon a carbon-alining or carbon-positioning rockarm 74 which is provided with carbon-receiving longitudinal groove 7 5, and this grooved face of the rock-arm 7a is adapted to move in contact with a vertically disposed smooth flat inner face of the slotted block 72, and the rock shaft 73 is provided with aperture 76 in alinement with the carbonreceiving slot of the rock-arm7 l as clearly appears in the drawings, particularly in Fig. thereof. The groove 7 5 in the rockarm 7% is of a depth to receive one of the carbon electrode rods therein and in the normal or horizontal position of the carbonpositioning rock-arm it, this slot 7 registers with the lower one. of the inclined slot in the slotted block 72 in position to receive the lowermostof a series of the carbon rods 53 which move downward by gravity through the chute 71. and slotted block 72 forming a continuation of the lower end of the chute, this horizontal carbon-receiving position of the rock-arm 7 4e appearing in the drawings in Fig. 1, and this being the position of the parts of the machine appearing in Fig. 2 also.

The rock shaft 7 S which carries the rockarm 7% is adapted to be rotated through a quarter turn for thereby brin 1g the carbon rod 53 carried by the rock-arm 7 k in the groove 75 thereof into vertical position in alinemen; with the carbon-insorting plunger rod 52, and also into alinement with the hole in the punched and partly coi'npressed charge 59 in the mold 9 at thecorresponding position, by

means of a ack bar 77 slidable in guideways provided at the side of the machine and engageable with pinion teeth 7 8 formed upon the outer end of the rock shaft 7 3, as more particularly appears in Fig. 2 or the drawings. A sliding movement is imparted to the rack 77 by means of a vertically arranged operating lever 79 pivoted on the frame of the machine by a pivot stud 80. At its lower end the lever 79 is connected to the forward end of the rack 77 by means of a short link 81, and the upper free end of this lever 79 carries a cam roller 8:2 which is engaged by an operating cam 83 fixed upon the adjacent end of the crank-shaft 26, this cam 83 being so shaped as properly to operate the rock-arm 7 4: for bringing the carbon electrode rod 53 into alinement with and beneath the elevated carbondnserting plunger tip in proper timed relation in the operation of the machine, as will be readily understood. After the alined carbon elect-rode rod 53 carried in the groove of the rockarm 7 has been pushed downward by the descending carbon-inserting plunger tip 52 through the aperture or transverse hole 7 6 in the rock-shaft 7 3 and into the upper end of the hole in the partly or initially compressed and punched charge 50. from the position. of this rod appearing at the right in Fig. 5, to the position thereof appearing at the left in. Fig. 6 and at the right in Fig. 8, the carbon-j'iositioning rock-arm 74 is returned from its vertical to its horizontal carbon-receiving position, and this is accomplished by means of a coiled retractile spring 841; attached to the upper arm of the vertically arranged lever 79 and anchored to the frame of the machine, as appears in the drawings in 1 and 2. For holding the carbon rod 53 in position in the groove 75 of the rock-arm 74-, an arcuate spring wire 85 is contained in a groove 86 in the adjacent fiat face of the slotted block 72 and is anchored at its ends i';liereto,and eXcrts a slight pressure on the carbon rod 53 carried by the rock-arm 74%. this wire 85 appearing most clearly in Fig. 6. A stop-pin or abutment stud S7 is shown as provided on the flat lateral face of the slotted block 7 2 for assuring that the (arlioircarrving rock-arm 74: shall stop at the correct vertical position with the carbon rod (7:U'l((l thereby in alinenieut with the carhoni serting plunger rod 52.

a lateral angularly extending part of the gate 89, as appears most clearly in Fig. 5 and which at its outer end is adapted to be engaged and operated by a cam member 91 carried by the slidable rack 77, as appears most clearly perhaps in 6 oi? the drawings. lVhen the outer end or the operating lever is released by this cam member 91, the gate 89 will move downward by reason of gravity and also by reason oi? downward iovement which will be imparted thereto through a projecting stud 92 which will be engaged by the descending rock-arm 74. and which also serves as an abutment or stop for this roclcarni in its carbon-receiving position.

To prevent the possible clogging of the carbon electrode rods 53 within the magazine 70 at the upper end of the chute 71, a slidable agitating bar 93 arranged along the upper inclined surface of the chute 71 projecting at its upper end into the lower part of the magazine 70 and at its lower end carrying a cam block 94 having an inclined operating face which is adapted to he engaged. by the correspondingly inclined operating face of a cam member 95 mounted upon the rack 77, as shown in the drawings, particularly in Fig. 3.

The means for applying power to the machine for driving it will now be described. A spur driving gear 96 is loosely mounted upon the projecting outer end of the crankshaft 26. appearing at the right in Fig.1 and at the front in Fig. and is adapted to be rotatively connected to or coupled to the crank-shaft by means of a suitable clutch which may be a mural one-revolution clutch and that being the kind oi clutch employed in the machine illustrated in the drawings and having a verticz-illy movable clutch-controllii member 97 shown as can ried by the forward end of a pivoted lever 98 which at its rear end is pivoted upon the frame oi the machine and which is adapted to be raised to clutch-disengaging position by means of a coiled retractile spring 99 attached thereto and shown as anchored to the frame of the machine near the top thereof as appears in 's. 1 and 2 of the drawings. The clutch-controlliug member 97 is adapted to be depressed For connecting or coupling the drivinggear 06 to the crai shaft 26, by means of a pedal 100 connects to the controlling lever 98 by moans ot a long link 101.

. The spur driving gear 96 is contimiousl rotated by means of a spur pinion 102 meshinp' therewith and carried by the adjacent end oi a transverse power shatt 103 journaled in the upper part of the heme oi? the machine at the rear and slightly below the crankshaft 26 and n'ovided at its other end, appearing at the left in Fig. 1, with a belt-receiving driving pulley 10a shown as havin thereon a projecting rim 105 forming fly-wheel.

t is obvious that various modifications may be made in the construction shown in the drawings and above particularly described within the principle and scope of our invention.

We claim:

1. A bobbin making machine comprisinga mold, means for supplying depolarizing material to the mold, means for concurrently compressing and forming a hole in the depolarizing material in the mold at a single operation, means for inserting an electrode rod in the hole formed in the charge of depolarizing material, means for forcing said rod through such material until its opposite end projects therefrom and concurrently further compressing the depolarizing material around the electrode rod, and means for discharging the completed bobbin from the mold.

2. A bobbin making machine comprising a mold, means for supplying depolarizing material to the mold, a compressing plunger for compressing the depolarizing material in the mold, a rod fixedly projecting from the compressing end of the plunger for punching a hole in the depolarizing material in the mold concurrently with the compression thereof by the plunger, a plunger for inserting an electrode rod in the hole formed in the depolarizing material in the mold, and a combined carbon-positioning and compressing plunger for pushing said electrode rod along in the depolarizing material until said electrode rod projects from the opposite end thereof and for concurrently compressing the depolarizing material around said electrode rod to a predetermined length.

3. A bobbin making machine having, in combination, a mold, a plunger for punching a' hole in depolarizing material in the mold, and a plunger for inserting an electrode rod into said hole, and a plunger for concurrently pushing the electrode rod through the depolarizing material until it projects from the opposite end thereof and for compressing the depolarizing material around the electrode rod to a predetermined length.

l. A bobbin making machine comprising a: series of similar molds, a series of four dissimilar plungers, means for bringing the dilierent molds and plungers into successive alinement, means for supplying depolarizing material to the successive molds, and means for producing relative movement of the aliued molds and plungers for causing the plungers to operate upon the material in the molds; the first of said plungers being a: combined compressing and punching plunger adapted to compress and punch a hole in the material in the mold, the second of said plungers being adapted to insert an electrode rod in the hole in the material in the mold, the third of said plungers being adapted to push the electrode rod along in the material in the mold until it projects from the opposite end thereof and for concurrently compressing the material around the electrode rod to a predetermined length, and the fourth of said plungers being an ejecting plunger for discharging the completed bobbin from the mold.

5. A bobbin making machine having, in combination, a mold, means for forming in the mold a charge of depolarizing material having a longitudinal hole therein, means for pushing an electrode rod into the hole in the charge of depolarizing material in the mold, means for further pushing the electrode rod along in said material until it projects from the opposite end thereof, a backing member for supporting the depolarizing material while the electrode rod is pushed along therein so as to project therefrom at the opposite end thereof, and means for discharging the completed bobbin from the mold.

6. The invention claimed in claim 5 in which the means for further pushing the electrode rod along in the material in the mold includes means for further compressing the depolarizing material around the electrode rod.

7. A bobbin making machine having, in combination, a mold, means for supplying depolarizing material to the mold, means for pushing an electrode rod longitudinally through said material in the mold until it projects from the opposite end thereof and for compressing said material around the bus positioned electrode rod, and means for discharging the completed bobbin from the mold.

8. A bobbin making machine having, in combination, a mold, means for supplying depolarizing material to the mold, a plunger for inserting an electrode rod longitudinally into such material in the mold, and a plunger for pushing the electrode rod along in such material until it projects beyond the opposite end of the charge of depolarizing material in the mold and for compressing the depolarizing material in the mold around the electrode rod.

9. A bobbin making machine having, in combination, a mold, means for supplying depolarizing material to the mold, a plunger for inserting an electrode rod longitudinally into such material in the mold, a plunger for pushing the electrode rod along in such material until it projects beyond the opposite end of the charge of depolarizing material in the mold, and an automatically moving movable backing member which supports the depolarizing material while the electrode rod is pushed along therein so as to project therefrom at the opposite end thereof.

10. The invention claimed in claim 8 in combination with an automatically moving movable backing member which supports the depolarizing material while it is compressed around the electrode rod and providingfor the -movement of the electrode rod to the projecting position.

ll. A bobbin making machine comprising a movable carrier provided with a series of molds, means for supplying depolarizing material to the molds, backing means forming bottoms for the molds and relatively to which the molds are transversely movable, means for forcing an electrode rod longitudinally through the depolarizing material in the mold and to a position projecting beyond such material and beyond the bottom-forming surface of said bottomforming backing means, said backing means being provided with a slot for receiving the projecting end of said electrode rod, and a bottom-forming backing member movable into position partly to close said slot and thereby to support said depolarizing material around the projecting end of said electrode rod and movable to a position out of said slot to permit the passage laterally of the projecting end of said electrode rod during said transverse shifting movement of said carrier relatively to said backing means.

12. A bobbin making machine comprising a mold, means for supplying depolarizing material to the mold, a slotted backing member forming a bottom for said mold and relatively to which said mold is transversely movable, means for forcing an electrode rod longitudinally through said material to a position in which it projects from the opposite end thereof into said slot, and a movable bottom-forming member adapted partly to close said slot and to support said material during the movement of said electrode rod to its projecting position and adapted to be retracted to open said slot for permitting said relative transverse movement of the mold relatively to said slotted backing member.

13. A bobbin making maclnne comprising a rotative mold-carrying turret, means for supplying depolarizing materlal to the molds, a backing plate forming bottoms for the molds, means for concurrently making a hole in a charge of depolarizing material in a mold and compressing it against said backing plate, means for inserting an elec trode rod into said hole and pushing it along in said charge until it projects at the other end thereof beyond the bottom-formlng surface of said backing plate, a tapered slot being provided in said backing plate and the smaller end of which receives said electrode rod and which provides for the transverse movement of said electrode rod during the rotation of said turret, and ejecting means for discharging the completed bobbin through the larger end of said tapered slot in the backing plate.

14;. The invention claimed in claim 13 in combination with a movable bottom-forming member for closing the narrow end of said slot at the side of said projecting electrode rod and thereby supporting the depolarizing material dnring the pushing in of the electrode rod to the projecting position and adapted to move out of said slot to provide a clear passageway for the projecting end of said electrode rod in its transverse movement during the rotation of the mold-carrying turret.

15. A machine for making bobbins for electric batteries of the kind in which a rotating turret carries a series of molds containing depolarizing material which is acted upon by a series of plungers for forming an electrode bobbin in which an electrode rod projects from one end of the cylindrical mass of depolarizing material, characterized by the fact that one of these plungers pushes the electrode rod through the mold until it proiects from the other end thereof and from the corresponding end of the material contained in the mold and compresses the depolarizing material in the mold around the electrode rod.

16. The invention claimed in claim 15 in combination with a backing member forming a bottom for the successive molds and provided with a slot for receiving the proj ecting end of the electrode rod, and a movable bottom-forming abutment member for closing said slot at the side of said projecting electrode rod and movable out of said slot to provide for the passage of said projecting end of the electrode rod as the moldcarrying turret rotates.

17. An automatic machine for making bobbins for electric batteries of the kind in which a series of plungers are automatically reciprocated for acting upon depolarizing material contained in a series of molds carried by a relatively rotating mold-carrying turret for forming such depolarizing material into a cylinder having an electrode rod projecting from end thereof, characterized by the fact that a first plunger con currently compresses and punches a hole in which a backing plate provides a closure for the bottoms of the molds and has therein a tapered slot for the projection and transverse passage of the projecting end of the electrode rod, and a. movable abutment member which operates automatically for partly closing the smaller end of said slot when the electrode rod is pushed through and moves out of said slot for the transverse passage of said projecting electrode rod.

19. The invention claimed in claim 17 in which the said third plunger also compresses the depolarizing material in the mold around said electrode rod.

20. The invention claimed in claim 19 in combination with an automatically acting abutment member for partly closing said slot in the backing plate during the compression of the depolarizing material therein and movable out of said slot for permitting the transverse passage of the projecting end of the electrode rod as the turret rotates relatively to said bottom-forming backing plate.

21. A bobbin making machine having, in combination, a mold, means for supplying depolarizing material to the mold, means for compressing and forming a hole in the depolarizing material in the mold, means for inserting an electrode rod part way into the hole formed in the charge of depolarizing material, and means for further compressin the depolarizing material and concurrently forcing said rod through such material until its opposite end projects therefrom.

22. The invention claimed in claim 2 in which the plunger for inserting the elec trode rod is ada ted to insert said rod only part way into tie hole formed in the depolarizing material in the mold.

23. The invention claimed in claim 3 in which the plunger for inserting the electrode rod is adapted to insert said rod part way only into the hole in the depolarizing material in the mold.

9A. The invention claimed in claim 4: in which the plunger for inserting the electrode rod is adapted to insert said rod part way only into the hole punched in the material in the mold.

The invention claimed in claim 5 in which the means for pushing the electrode rod into the hole in the charge of depolarizing material in the mold is adapted to push said rod part way only into such hole.

26. The invention claimed in claim 6 in which the means for pushing the electrode rod into the hole in the charge of depolarizing material in the mold is adapted to push said rod part way only into such hole.

In testimony whereof, we have aiiixed our signatures to this specification.

ABRAHAM KIPNISS. MAX PAUL NEUlWANN. 

